Applicationfor 2.8L compatible for Nissan Skyline GT-R Z-Tune RB28DETT Engine GTS R32 R33 R34 RB25 RB26 RB28DimensionsMaterial: 4340 EN24 Aircraft Chrome Moly Billet Steel Flywheel / Flexplate bolts pattern: 6 Rods journal diameter: 47.97mm Main journal diameter: 54.965mm Rods center length: 121.5mm or 119.5mm Stroke: 77.7mm Max HP: 1800 HP Feature: Fully BalancedNote- Professional installation is highly recommended (No Instruction Included) - Custom Service:If there\'s no crankshaft you need on our site, we would be happy to help determine your requirements and develop a solution with you to satisfy your needs. - Learn more about CUSTOM SERVICE